# NTSB Incident ENG08IA030
> **BOEING B747** · 2008-07-05 · Jeddah, SA · —
## Event
- **NTSB number:** ENG08IA030
- **Event ID:** 20081219X16535
- **Type:** Incident
- **Date:** 2008-07-05
- **Location:** Jeddah, SA
## Injuries
- **Highest injury:** —
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 0
## Aircraft
- **Make:** BOEING
- **Model:** B747
- **Registration:** HS-VAC
- **FAR Part:** 129
- **Engines:** —
- **Damage:** MINR
## Conditions
- **Light:** —
- **Weather:** —
## Probable cause

Failure of the low pressure turbine stage 3 disk due to a design that is vulnerable to high pressure turbine unbalance-induced synchronous vibration that cannot  be detected in flight, and the subsequent uncontained engine failure.

---
*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ENG08IA030) · AI Analytics · CC0 1.0*